Commentary on : Malnutrition and cognitive impairment among people aged 60 years and above living in regular housing or in special housing in Sweden: a population-based cohort study. Int J Nurs Stud 2011;48(7):86371.Commentary on : Malnutrition and cognitive impairment among people aged 60 years and above living in regular housing or in special housing in Sweden: a population-based cohort study. Int J Nurs Stud 2011;48(7):86371.